Shripad Bhatlawande on Twitter: "Prewitt and Sobel Operators use Derivative Masks Both Perform Smoothing in one Direction with Edge Detection in Perpendicular Direction #Edge_Detection https://t.co/OiYJas9kxq" / Twitter
Quantum Image Edge Detection Based on Four Directional Sobel Operator | SpringerLink
Comparing Edge Detection Methods
An improved Sobel edge detection | Semantic Scholar
Sobel Edge Detection - an overview | ScienceDirect Topics